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🛡️ AWS VPC Flow Logs are not enabled🟢

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Similar Policies​

Similar Internal Rules​

RulePoliciesFlags
✉️ dec-x-9c0416671

Description​

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Description​

VPC Flow Logs is a feature that enables you to capture information about the IP traffic going to and from network interfaces in your VPC. After you've created a flow log, you can view and retrieve its data in Amazon CloudWatch Logs. It is recommended that VPC Flow Logs be enabled for packet "Rejects" for VPCs.

Rationale​

VPC Flow Logs provide visibility into network traffic that traverses the VPC and can be used to detect anomalous traffic or insight during security workflows.

Impact​

By default, CloudWatch Logs will store Logs indefinitely unless a specific retention period is defined for the log group. When choosing the number of days to retain, keep in mind the average days it takes an organization to realize they have been breached is 210 days (at the time of this writing). Since additional time is required to research a breach, a minimum 365 day retention policy allows time for detection and research. You may also wish to archive the logs to a cheaper storage service rather than simply deleting them. See the following AWS resource to manage CloudWatch Logs retention periods:

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Remediation​

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Remediation​

Using AWS CloudFormation​

  • CloudFormation template (YAML):

Note: The IAM role used in DeliverLogsPermissionArn must exist before deploying this template.

AWSTemplateFormatVersion: '2010-09-09'
Description: Enables flow logging for rejected traffic on a specified VPC, publishing to CloudWatch Logs.

Parameters:
  VPCId:
    Type: String
    Description: ID of the existing VPC
  LogGroupName:
    Type: String
    Default: /vpc/flow-logs
  FlowLogRoleArn:
    Type: String
    Description: >
      ARN of an existing IAM role that grants permission to publish flow logs to CloudWatch Logs.

Resources:
  VPCFlowLog:
    Type: AWS::EC2::FlowLog
    Properties:
      ResourceId: !Ref VPCId
      ResourceType: VPC
      TrafficType: REJECT
      DeliverLogsPermissionArn: !Ref FlowLogRoleArn
      LogGroupName: !Ref LogGroupName
      LogDestinationType: cloud-watch-logs

From Console​

  1. Sign into the management console.
  2. Select Services then VPC.
  3. In the left navigation pane, select Your VPCs.
  4. Select a VPC.

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policy.yaml​

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Linked Framework Sections​

SectionSub SectionsInternal RulesPoliciesFlagsCompliance
💼 APRA CPG 234 → 💼 16f information security reporting and analytics;911no data
💼 APRA CPG 234 → 💼 36j monitoring controls — for timely detection of compromises to information security;911no data
💼 APRA CPG 234 → 💼 67a network and user profiling that establishes a baseline of normal activity which, when combined with logging and alerting mechanisms, can enable detection of anomalous activity;1922no data
💼 APRA CPG 234 → 💼 e. use of, and access to, information assets is attributable to an individual, hardware or software, and activity logged and monitored;22no data
💼 AWS Foundational Security Best Practices v1.0.0 → 💼 [EC2.6] VPC flow logging should be enabled in all VPCs11no data
💼 CIS AWS v1.2.0 → 💼 2.9 Ensure VPC flow logging is enabled in all VPCs11no data
💼 CIS AWS v1.3.0 → 💼 3.9 Ensure VPC flow logging is enabled in all VPCs11no data
💼 CIS AWS v1.4.0 → 💼 3.9 Ensure VPC flow logging is enabled in all VPCs11no data
💼 CIS AWS v1.5.0 → 💼 3.9 Ensure VPC flow logging is enabled in all VPCs - Level 2 (Automated)11no data
💼 CIS AWS v2.0.0 → 💼 3.9 Ensure VPC flow logging is enabled in all VPCs - Level 2 (Automated)11no data
💼 CIS AWS v3.0.0 → 💼 3.7 Ensure VPC flow logging is enabled in all VPCs - Level 2 (Automated)11no data
💼 CIS AWS v4.0.0 → 💼 3.7 Ensure VPC flow logging is enabled in all VPCs (Automated)1no data
💼 CIS AWS v4.0.1 → 💼 3.7 Ensure VPC flow logging is enabled in all VPCs (Automated)1no data
💼 CIS AWS v5.0.0 → 💼 3.7 Ensure VPC flow logging is enabled in all VPCs (Automated)1no data
💼 CIS AWS v6.0.0 → 💼 4.7 Ensure VPC flow logging is enabled in all VPCs (Automated)1no data
💼 Cloudaware Framework → 💼 Logging and Monitoring Configuration65no data
💼 FedRAMP High Security Controls → 💼 AC-6(9) Log Use of Privileged Functions (M)(H)726no data
💼 FedRAMP High Security Controls → 💼 AU-2 Event Logging (L)(M)(H)17no data
💼 FedRAMP High Security Controls → 💼 AU-3 Content of Audit Records (L)(M)(H)128no data
💼 FedRAMP High Security Controls → 💼 AU-6 Audit Record Review, Analysis, and Reporting (L)(M)(H)62032no data
💼 FedRAMP High Security Controls → 💼 AU-6(3) Correlate Audit Record Repositories (M)(H)8no data
💼 FedRAMP High Security Controls → 💼 AU-6(4) Central Review and Analysis (H)8no data
💼 FedRAMP High Security Controls → 💼 AU-11 Audit Record Retention (L)(M)(H)1618no data
💼 FedRAMP High Security Controls → 💼 AU-12 Audit Record Generation (L)(M)(H)265no data
💼 FedRAMP High Security Controls → 💼 CA-7 Continuous Monitoring (L)(M)(H)213no data
💼 FedRAMP High Security Controls → 💼 CM-3 Configuration Change Control (M)(H)425no data
💼 FedRAMP High Security Controls → 💼 SI-4(1) System-wide Intrusion Detection System (M)(H)12no data
💼 FedRAMP High Security Controls → 💼 SI-4(4) Inbound and Outbound Communications Traffic (M)(H)68no data
💼 FedRAMP High Security Controls → 💼 SI-4(20) Privileged Users (H)4851no data
💼 FedRAMP Low Security Controls → 💼 AU-2 Event Logging (L)(M)(H)17no data
💼 FedRAMP Low Security Controls → 💼 AU-3 Content of Audit Records (L)(M)(H)14no data
💼 FedRAMP Low Security Controls → 💼 AU-6 Audit Record Review, Analysis, and Reporting (L)(M)(H)24no data
💼 FedRAMP Low Security Controls → 💼 AU-11 Audit Record Retention (L)(M)(H)18no data
💼 FedRAMP Low Security Controls → 💼 AU-12 Audit Record Generation (L)(M)(H)65no data
💼 FedRAMP Low Security Controls → 💼 CA-7 Continuous Monitoring (L)(M)(H)113no data
💼 FedRAMP Moderate Security Controls → 💼 AC-6(9) Log Use of Privileged Functions (M)(H)26no data
💼 FedRAMP Moderate Security Controls → 💼 AU-2 Event Logging (L)(M)(H)17no data
💼 FedRAMP Moderate Security Controls → 💼 AU-3 Content of Audit Records (L)(M)(H)128no data
💼 FedRAMP Moderate Security Controls → 💼 AU-6 Audit Record Review, Analysis, and Reporting (L)(M)(H)232no data
💼 FedRAMP Moderate Security Controls → 💼 AU-6(3) Correlate Audit Record Repositories (M)(H)8no data
💼 FedRAMP Moderate Security Controls → 💼 AU-11 Audit Record Retention (L)(M)(H)18no data
💼 FedRAMP Moderate Security Controls → 💼 AU-12 Audit Record Generation (L)(M)(H)65no data
💼 FedRAMP Moderate Security Controls → 💼 CA-7 Continuous Monitoring (L)(M)(H)213no data
💼 FedRAMP Moderate Security Controls → 💼 CM-3 Configuration Change Control (M)(H)219no data
💼 FedRAMP Moderate Security Controls → 💼 SI-4(1) System-wide Intrusion Detection System (M)(H)2no data
💼 FedRAMP Moderate Security Controls → 💼 SI-4(4) Inbound and Outbound Communications Traffic (M)(H)8no data
💼 ISO/IEC 27001:2013 → 💼 A.12.4.1 Event logging1518no data
💼 ISO/IEC 27001:2022 → 💼 8.15 Logging1834no data
💼 ISO/IEC 27001:2022 → 💼 8.16 Monitoring activities45no data
💼 ISO/IEC 27001:2022 → 💼 8.20 Networks security514no data
💼 NIST CSF v1.1 → 💼 DE.AE-2: Detected events are analyzed to understand attack targets and methods1824no data
💼 NIST CSF v1.1 → 💼 DE.AE-3: Event data are collected and correlated from multiple sources and sensors1838no data
💼 NIST CSF v1.1 → 💼 DE.CM-1: The network is monitored to detect potential cybersecurity events1863no data
💼 NIST CSF v1.1 → 💼 DE.CM-3: Personnel activity is monitored to detect potential cybersecurity events2026no data
💼 NIST CSF v1.1 → 💼 DE.CM-7: Monitoring for unauthorized personnel, connections, devices, and software is performed1824no data
💼 NIST CSF v1.1 → 💼 DE.DP-4: Event detection information is communicated2933no data
💼 NIST CSF v1.1 → 💼 ID.SC-4: Suppliers and third-party partners are routinely assessed using audits, test results, or other forms of evaluations to confirm they are meeting their contractual obligations1519no data
💼 NIST CSF v1.1 → 💼 PR.PT-1: Audit/log records are determined, documented, implemented, and reviewed in accordance with policy1633no data
💼 NIST CSF v1.1 → 💼 RS.AN-1: Notifications from detection systems are investigated1824no data
💼 NIST CSF v1.1 → 💼 RS.CO-2: Incidents are reported consistent with established criteria1922no data
💼 NIST CSF v2.0 → 💼 DE.AE-02: Potentially adverse events are analyzed to better understand associated activities35no data
💼 NIST CSF v2.0 → 💼 DE.AE-03: Information is correlated from multiple sources50no data
💼 NIST CSF v2.0 → 💼 DE.AE-06: Information on adverse events is provided to authorized staff and tools33no data
💼 NIST CSF v2.0 → 💼 DE.AE-07: Cyber threat intelligence and other contextual information are integrated into the analysis38no data
💼 NIST CSF v2.0 → 💼 DE.CM-01: Networks and network services are monitored to find potentially adverse events145no data
💼 NIST CSF v2.0 → 💼 DE.CM-02: The physical environment is monitored to find potentially adverse events13no data
💼 NIST CSF v2.0 → 💼 DE.CM-03: Personnel activity and technology usage are monitored to find potentially adverse events85no data
💼 NIST CSF v2.0 → 💼 DE.CM-06: External service provider activities and services are monitored to find potentially adverse events35no data
💼 NIST CSF v2.0 → 💼 DE.CM-09: Computing hardware and software, runtime environments, and their data are monitored to find potentially adverse events142no data
💼 NIST CSF v2.0 → 💼 GV.SC-07: The risks posed by a supplier, their products and services, and other third parties are understood, recorded, prioritized, assessed, responded to, and monitored over the course of the relationship26no data
💼 NIST CSF v2.0 → 💼 ID.IM-01: Improvements are identified from evaluations26no data
💼 NIST CSF v2.0 → 💼 ID.IM-02: Improvements are identified from security tests and exercises, including those done in coordination with suppliers and relevant third parties40no data
💼 NIST CSF v2.0 → 💼 ID.IM-03: Improvements are identified from execution of operational processes, procedures, and activities41no data
💼 NIST CSF v2.0 → 💼 ID.RA-01: Vulnerabilities in assets are identified, validated, and recorded31no data
💼 NIST CSF v2.0 → 💼 ID.RA-07: Changes and exceptions are managed, assessed for risk impact, recorded, and tracked31no data
💼 NIST CSF v2.0 → 💼 ID.RA-10: Critical suppliers are assessed prior to acquisition26no data
💼 NIST CSF v2.0 → 💼 RC.CO-04: Public updates on incident recovery are shared using approved methods and messaging22no data
💼 NIST CSF v2.0 → 💼 RS.CO-02: Internal and external stakeholders are notified of incidents31no data
💼 NIST CSF v2.0 → 💼 RS.MA-02: Incident reports are triaged and validated25no data
💼 NIST SP 800-53 Revision 4 → 💼 AU-2 AUDIT EVENTS434no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-4(26) Information Flow Enforcement _ Audit Filtering Actions9no data
💼 NIST SP 800-53 Revision 5 → 💼 AC-6(9) Least Privilege _ Log Use of Privileged Functions1719no data
💼 NIST SP 800-53 Revision 5 → 💼 AU-2 Event Logging417no data
💼 NIST SP 800-53 Revision 5 → 💼 AU-3 Content of Audit Records31328no data
💼 NIST SP 800-53 Revision 5 → 💼 AU-6(3) Audit Record Review, Analysis, and Reporting _ Correlate Audit Record Repositories8no data
💼 NIST SP 800-53 Revision 5 → 💼 AU-6(4) Audit Record Review, Analysis, and Reporting _ Central Review and Analysis8no data
💼 NIST SP 800-53 Revision 5 → 💼 AU-12 Audit Record Generation44765no data
💼 NIST SP 800-53 Revision 5 → 💼 CA-7 Continuous Monitoring613no data
💼 NIST SP 800-53 Revision 5 → 💼 CM-3 Configuration Change Control81725no data
💼 NIST SP 800-53 Revision 5 → 💼 SI-4(4) System Monitoring _ Inbound and Outbound Communications Traffic12no data
💼 NIST SP 800-53 Revision 5 → 💼 SI-7(8) Software, Firmware, and Information Integrity _ Auditing Capability for Significant Events8no data
💼 PCI DSS v3.2.1 → 💼 10.3.3 Date and time.1no data
💼 PCI DSS v3.2.1 → 💼 10.3.4 Success or failure indication.1no data
💼 PCI DSS v3.2.1 → 💼 10.3.5 Origination of event.1no data
💼 PCI DSS v3.2.1 → 💼 10.3.6 Identity or name of affected data, system component, or resource.1no data
💼 PCI DSS v3.2.1 → 💼 11.4 Use intrusion-detection and/or intrusion-prevention techniques to detect and/or prevent intrusions into the network.113no data
💼 PCI DSS v4.0.1 → 💼 11.5.1 Intrusion-detection and/or intrusion-prevention techniques are used to detect and/or prevent intrusions into the network.113no data
💼 PCI DSS v4.0.1 → 💼 11.5.1.1 Intrusion-detection and/or intrusion-prevention techniques detect, alert on/prevent, and address covert malware communication channels.13no data
💼 PCI DSS v4.0.1 → 💼 11.6.1 A change- and tamper-detection mechanism is deployed.13no data
💼 PCI DSS v4.0 → 💼 11.5.1 Intrusion-detection and/or intrusion-prevention techniques are used to detect and/or prevent intrusions into the network.1813no data
💼 PCI DSS v4.0 → 💼 11.5.1.1 Intrusion-detection and/or intrusion-prevention techniques detect, alert on/prevent, and address covert malware communication channels.813no data
💼 PCI DSS v4.0 → 💼 11.6.1 A change- and tamper-detection mechanism is deployed.13no data
💼 SOC 2 → 💼 CC6.1-5 Considers Network Segmentation11no data